<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Spring Boot + Websocket + 广播式</title>
</head>
<body onload="disconnect()">
<noscript><h2 style="color: red">貌似你的浏览器不支持websocket</h2></noscript>
<div>
    <div>
        <button id="connect" onclick="connect()">连接</button>
        <button id="disconnect" disabled="disabled" onclick="disconnect()">断开连接</button>
    </div>
    <div id="conversationDiv">
        <label>输入您得名字：</label><input type="text" id="name"/>
        <button id="sendName" onclick="sendName()">发送</button>
        <p id="response"></p>
    </div>
</div>
<script th:src="@{sockjs.min.js}"></script>
<script th:src="@{stomp.min.js}"></script>
<script th:src="@{jquery.min.js}"></script>
<script type="text/javascript">
    var stompClient = null;

    function setConnected(connected) {
        document.getElementById('connect').disabled = connected;
        document.getElementById('disconnect').disabled = !connected;
        document.getElementById('conversationDiv').style.visibility = connected ? "visible" : "hidden";
        $("#response").html();
    }

    function connect() {
        var socket = new SockJS("/endpointBaijing");
        stompClient = Stomp.over(socket);
        stompClient.connect({}, function (frame) {
            setConnected(true);
            console.log("Connected: " + frame);
            stompClient.subscribe('/topic/getResponse', function (response) {
                console.log("res: " + response);
                showResponse(JSON.parse(response.body).responseMessage);
            });
        })
    }

    function disconnect() {
        if (stompClient != null) {
            stompClient.disconnect();
        }
        setConnected(false);
        console.log("Disconnected");
    }

    function sendName() {
        var name = $("#name").val();
        stompClient.send("/welcome", {}, JSON.stringify({'name': name}));
    }

    function showResponse(message) {
        var response = $("#response");
        response.html(message);
    }


</script>
</body>
</html>